Spring-hinge.



E. BOMMER.

SPRING HINGE.

APPLIGATION FILED MAY 28, 1012. RENEWED JAN. 16, 1915.

1,131,658. Patented Mar.16,1915.

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QHIIIIIIUIIIIIIHLM ATTO IVEYS EIVIIL BOMMER, OF NEW YORK, N. Y.

SPRING-HINGE.

Application filed May 28, 1912, Serial No. 700,167. Renewed January 16, 1915.

To aZZ whom it may concern Be it known that I, EMIL BOMMER, a citi- Zen of the United States of America, residing in the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful 1mprove ments in Spring-Hinges, of which the following is a specification.

This invention relates to improvements in spring-hinges, and has for its object to provide means whereby the pintle and supporting ear of one member of the hinge are locked in position and are prevented from relative rotation each to the other, and also to provide on the pintle a non-rotatable antifriction washer, which can be readily replaced, to take up the wear between the ear of the hinge-leaf and the adjacent fixed or adjustable spring holder. Hitherto it was found that the rotation of the supporting ear and of the pintle in respect to each other, under the weight of the door, caused the pintle and ear to wear at the bearing hole of the ear. The wear of the hole is irregular and results in the concentricity of the hole being broken. The hole becomes eccentrio and permits the door to sag at its outer edge.

To obviate this disavantage, my invention consists in looking the ear to the pintle so as to prevent relative movement of these parts, and locking the washer to prevent its relative movement to the ear. Each member of the hinge will still be rotatable in respect to the other, but the pintle will be locked in respect to the supporting ear, and to the washer. For this purpose my invention consists of a spring-hinge provided with supporting ears, and means looking the pintle in position so as to prevent its movement or rotation of the pintle in respect to the supporting ears of the hinge, and also in looking the washer to one of the supporting ears.

In the accompanying drawings, Figure 1 is a view partly in section and partly in elevation of my improved device, applied to a single-acting hinge, Fig. 2 is a plan view of the same, Fig. 3 is a section on line 3-3, Fig. 1, Fig. at is a plan view of the washer, and Fig. 5 is a front view of a double-acting spring-hinge embodying the invention.

Similar numerals of reference indicate corresponding parts throughout the several views.

Referring to the drawing, the members or Specification of Letters Patent.

Patented Mar. 16, 1915.

Serial No. 2,722.

leaves and 11 of the hinge are provided with screwholes 1 for securing the members to the door and door-jamb respectively, and one of the members, namely, the member 11, is provided with a barrel l3 somewhat shorter than the member 10 and which contains the spring 14-. At the top of the barrel an adjustable spring-holder 16 for the spring is provided, which has peripheral sockets 17 enabling the spring to be set to tension, a second spring-holder 15, being arranged at the bottom of the barrel and fixed thereto. These fixed and adjustable springholders may, however, be transposed. The adjustable spring-holder 16 is seated upon an angularly-shaped bushing 18 which is seated on the barrel. The other member 10 is provided with a lower perforated ear l9 and an upper perforated ear 20, said ears being bent up integrally from the body of the member 10. A pintle 21 passes through the barrel and ears and spring-holders l5 and 1G and also through a washer 28, which is interposed between the fixed springholder and the lower ear 19, said pintle having its ends sorewthreaded as shown, whereby the pintle engages the corresponding interior screw-thread of the tips or terminals 23 and 2 1.

As before stated, it has been found that in the operation of single-acting and doubleacting hinges of the construction described, the weight of the door caused the ears to be drawn against the pintle, and by reason of this weight and the simultaneous rotation of the parts, the bearing hole of the supporting ear became irregularly worn so as to cause the door to sag at its outer edge when swung on its hinges. To obviate this disadvantage the invention provides means for preventing the rotation of the pintle in respect to the bearing surface, and for preventing the rotation of the washer 28 in respect to the ear.

In carrying out the invention, one of the ears of the member 10 is provided with a hexagonal opening and the washer 28 is also provided with a hexagonal opening 25 as shown in Fig. 4, and the pintle is provided with a hexagonal end portion 22, extending from the shoulder 26 to the screw-threaded lower end-portion 27 of the pintle which screw-threaded portion is also hexagonal. A cross-section of this hexagonal screwthreaded portion is shown in Fig. 8. The corners of the threaded hexagonal end portion 27 of the pintle engage securely with the interior thread of the tip or terminal, the hexagonal end-portion of the pintle extending outwardly beyond the ear of the leaf, and the washer being preferably not threaded. The pintle is secured in place within the hexagonal holes of the ear and washer. By placing the washer with its hexagonal opening 25 on the pintle shoulder 26, the washer and pintle become locked, and likewise by providing the ear 19 with a hexagonal opening like that shown in the washer in Fig. at, the pintle becomes stationary in respect to the ear and washer, and is not movable relatively thereto. Hence when the weight of the door rests on one of the members of the hinge and the door is swung, the rotation of the washer and ear in respect to the pintle, which heretofore occurred, is done away with, and friction and unequal wear of the bearing surface is prevented.

The improvement has been described in detail in connection with the single-acting hinge. Its application to the double-acting hinge is similar. In this case the washer and ear at the top of the barrel at one side of the web 29 Fig. 5 are provided with the hexagonal openings, while the washer and car at the bottom of the barrel at the other side of the web are likewise provided with the locking hexagonal openings, leaves 30 and 31 being provided with the usual screw-holes for fastening the hinge to the door. The improvement finds application to both kinds of hinges, and also is applicable to other specific types of hinges than those shown in the drawings. The use of the washer 28 takes up the wear and prevents the wearing away of the ear. The washer may be readily replaced at little expense and its use insures a long life to the ear of the hinge.

An embodiment of the invention showing hexagonal openings in the washer and in the ear, and corresponding hexagonal form of the pintle, have been shown and described, but it is clear that other embodiments embracing the underlying idea of the invention may be used, and I do not desire to limit myself to the specific embodiment shown in the drawings.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a spring-hinge, the combination of an ear having an opening with angular portions, a washer having an opening of a configuration substantially like that of the ear opening, and threaded pintle having that portion engaging the openings of the ear and washer of substantially the same eonfiguration as that of the openings of the ear and washer, and having its threaded portion of substantially the same configuration as that of the ear and washer openings, the ear and washer being locked to the engaging portion of the pintle, and the threaded end of the pintle permitting its insertion in the ear and washer.

2. In a spring-hinge, the combination of an ear iaving an opening of a hexagonal shape, a washer having an opening of hexagonal shape substantially like that of the opening in the ear, a threaded pintle having that portion engaging the openings of the ear and washer of hexagonal shape, and having its threaded portion of hexagonal shape, so as to permit the'insertion of the pintle in the washer and ear, and a tip having an interior screw-thread engaged by the screw-threaded portion of the pintle.

In testimony that I claim the foregoing as 7 my invention I have signed my name in presence of two subscribing witnesses.

EMIL BOMMER. Witnesses:

JOHN MURTAGH, M. A. DILLoN.

Copies of this patent may be obtained for five cents each, by addressing the Gommissioner of Patents,

Washington, I). G. Y 

